140407645 has 8 divisors (see below), whose sum is σ = 192559104. Its totient is φ = 96279504.

The previous prime is 140407639. The next prime is 140407661. The reversal of 140407645 is 546704041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140407645 - 2¹¹ = 140405597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2005789 + ... + 2005858.

It is an arithmetic number, because the mean of its divisors is an integer number (24069888).

Almost surely, 2^140407645 is an apocalyptic number.

It is an amenable number.

140407645 is a deficient number, since it is larger than the sum of its proper divisors (52151459).

140407645 is an equidigital number, since it uses as much as digits as its factorization.

140407645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4011659.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 140407645 is about 11849.3731901734. The cubic root of 140407645 is about 519.7528966486.

The spelling of 140407645 in words is "one hundred forty million, four hundred seven thousand, six hundred forty-five".